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Research and Metrology

The fundamental basis of all the measurement services in the Division, from calibrations to standard reference materials (SRMs®) to standard reference data, depends on active research in nuclear physics and radiation metrology as well as well-characterized radiation systems such as accelerators and source-based irradiators. Together with our active participation in international comparisons, such research and infrastructure also support the maintenance and dissemination of the national measurement standards for the Système International (SI) derived units for radiation dosimetry (the gray) and activity (the becquerel), a key responsibility of the Division.

A Novel Optical Technique for Rapid Detection of Neutrons

Alpha-gamma Counting for High Accuracy Fluence Measurement

Automated Multi-Sample Ionization Chamber for Radioactivity Standards

Calibration of Large-Volume 68Ge Phantom Sources for Monitoring PET Scanner

Calibration of Epoxy Based 133Ba Standard Phantom Sources for Use in an International Comparison for Quantitative SPECT

Characterization of Porous Transport Media for Hydrogen Fuel Cells

Comparison 60Co Absorbed Dose for High-Dose Dosimetry

Continuous Spin-Exchange Optical Pumping in High Flux Neutron Beams

Dose/Dose-Rate Effects in Alanine Dosimetry

Dosimetry Standardization for Radiobiology

Electron and Proton Aborbed-Dose-to-Water Primary Standards

Evolution of Image Spatial Resolution

Far-infrared Spectroscopy of Biomolecules

FPGA-based Triple-to-Double Coincidence Ratio Liquid Scintillation Counting

High Resolution X-ray Spectroscopy

Key Comparison for Air Kerma from Therapy Level and Radiation Protection Gamma-ray Beams

Magnetically Trapped Neutron Lifetime Experiment

Measurement of the Electron-Antineutron Correlation in Neutron Decay

Measurement of the Neutron Magnetic Dipole Moment Using Schwinger Scattering

Measurement of the Parity Non-Conserving Neutron Spin Rotation (PNC) in Liquid Helium  

Micelle Effects of Liquid Scintillation Counting

National Comparison of 99Tc

Neutron Cross Section Standards

Neutron Detector Replacement Program

Neutron Interferometry with Polarized Neutrons as an Additional Degree of Freedom

Neutron Imaging for Advanced Catalyst Development and Durability Studies

Neutron Imaging of Lithium and Alkaline Batteries

Photon and Charged Particle Data Center

Photon Absorbed Dose to Water Primary Standards

Primary Standardization of Radionuclides by Anticoincidence Counting

Precision Measurement of the Neutron-He3 Incoherent Scattering Length

Precision Measurement of Radiative neutron Decay Branching Ratio and Energy Spectrum  

Pushing and Understanding the Limits of Spin-Exchange Optical Pumping of 3He    

Remote Sensing Methods for Imaging Dose to Water

Search for Time Reversal Violation in Polarized Neutron Decay (emiT)

Standards for Clinical Radionuclide Calibrators

Theoretical Dosimetry and Radiation-Transport Calculations

Time-resolved infrared spectroscopy (TRIR)

Towards a Neutron Microscope

Use of Quantum Error Coding in a 4-Blade Neutron Interferometer

Wide-Angle Neutron Polarization Analysis

X-ray Detection and Large Area Avalanche Photodiodes for the Neutron Radiative Decay Experiment